Feed-water heater



(noifiodeLy I I H. E.-PARSON.

FEED WATER HEATER. No. 592,206. Patented Oct. 19,1897.

' WITNESSES: v

' steam from the engine, and a deflector atthe water-supply pipe, saidnozzle tapering downhaust-steam from the steam-engine, oi" othering-plates converging toward the blow-off section, on a reduced scale,showing the ar- UNITED STATES PATENT OFFIC HENRY E. PARSON, OF BROOKLYN,NEIV YORK.

" FEED-WATiERl-IEATER.

SPECIFICATION 'ftrmmg m ofIletter's iPatent No. 592,206, dated October19, 1897.

Application filed March 24, 1397.

Be it known that -I,-- HENRY E. PARsonfa citizen of the United States,residing at Brook lyn, in the county of Kings and State of New York,have invented certain new and useful Improvements in Feed-Water Heatersand; Regulators, of which the following is a speci fication. v 3 j 1This invention relates to certain improve--' ments in feedwater heaters,by which the ex-' source, is utilized for the purpose of heating theWater supplied to the boiler, and in which at the same time the normalwater-level .is simultaneously kept up by the automatic opening andclosing of the supply-Valve in the water-supply pipe; and theinvention-consists of a feed-water heater which comprises a tank, afeed-water-supply pipe, an injector for the feed-Water, operated by' theexhaust inner end of the injector-nozzle.

The invention also consists of a live-steam pipe leading into one end ofthe tank, ablow-off cock at the other end of the tank, and deflectcock,so that the scum and oil which are on the surface of the water can beforced out bythe action of the steam from said pipe.

In the accompanying drawings, Figure 1 represents a side elevation,partlyin section, with parts broken away, of a feed-water tank with myimproved heater attached thereto. Fig. 2 is a vertical transversesection on line 2. 2, Fig. 1; and Fig.8 is a broken horizontal rangementof the deflecting-plates. 7

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents a feed-water tank ofthe'required size and con struction, B 'a feed-water-supply; pipe, and Othe exhaust-steam pipe by whichthe exhaust-steam from the steam-engine,or other source, is conducted back into the tank, The feed-water-supplypipe B terminates in a noz-. zle B, that extends into the tank, near oneend, andis arranged at right angles to the Ward from an annularenlargement 13 into which enters a conical nozzle 0 of the exhaust-steampipe 0 in such a manner that a Serial n 23,951; on, magi.)

' smallspace formed between the upper part of: the comically-taperingnozzle Band the lower end of the interiornozzle O. The nozzles B and Oform together an injector for the feed-water pipe, which is caused toact by the exhaust-steam from the engine. The exhaust-steam creates avacuum in the enlarge- 150611513 of the nozzle Bof the injector anddraws the water through the supply-pipe O against the counter-pressurein the tank into the latter. At the lowerend of the nozzle B, inside ofthe tank, is arranged an inclined deflector-plate b, that serves themixture of -water and exhaust-steam toward the middle part of the -tank.

7 The tank is provided with the usual safetyvalve S, water-gage W, 850.,and with a bottom pipe P for drawing off the water when the boiler is tobe cleaned; It is also pro- Vided with a'manhole and manhole-cover M forcleaning the lower part ofthetank from sediment. r I

On a level with the normal water-level is arranged on one head of theboiler a blow-off cock D for permitting the discharging from time totime of the scum or oil, carried along by the exhaust-steam from theengine, from the surface of the water in the'tank, so that the same isnot carried back with the Water to the boiler. The discharge is causedby live steam, which is let in through the pipe D at the moment desired,at which time the cock is opened, so that the oil and scum can bedeflected through the cock by the deflectving-plates D These plates arearranged in the boiler so as to converge toward the cock. In the tank isarranged a solid float F, the shank of-which is pivoted to a transverserock-shaft ffthat turns in suitable bearings f at the interior of thetank and the watersupply pipe 13. The float F is made solid, so as toprevent the bursting to which hollow balls are liable when exposed togreat differences of, temperature. The float is balanced by a smallweight F, which is applied to an arm attached to the transverserock-shaft f, so that the float F freelyfollows the rising and loweringof the water-level inthe tank, The transverse rock-shaft f passesthrough the side wall of the tank, and is provided at its outer end withan axially-turning valve E in the -feed-water-supply pipe B, so that nowater can pass from the tank to the feedwater-supply pipe. By the riseand fall of the water-level the float F is likewise raised or loweredand thereby the valve in the supply-pipe closed or opened more or lessand the water in pipe 0 subjected to the suction action of theexhaust-steam that is forced into the tank through the injector B O.This intermittent supply of feed-water to the tank keeps the water inthe tank at a uniform level, while the feed-water is heated by the heatof the exhaust-steam.

The advantages of myiniproved feed-water heater are that theexhaust-steam can be condensed and utilized for ejecting the feed-waterinto the tank, and that the supply is automatically controlled by therising and fallin g of the float in the tank, so as to control thefcedwater-supply pipe and to thereby keep up the water-level.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent 1. In a feed-water heater for steam-boilers,

the combination of a feed-water tank, afcedwater-supply pipe, aninjector for the latter operated by the exhaust-steam from the engine,and a deflector arranged at and inclined relatively to the lower end ofthe injector, whereby the mixture of water and exhauststeam is deliveredtoward'the middle of the boiler, substantially as set forth.

2. In a feed-water heater, the combination of a tank, a steam-pipeleading into one end of the tank on a level with the normal waterlevel,a blow-off cock, located at the other end of the tank, on said level,and deflectingplates arranged in the tank and converging toward the saidcock, substantially as set forth. p

In testimony-that I claim the foregoing as my invention I have signed myname in presence'of two subscribing witnesses.

II. E. PARSON.

Witnesses:

GEO. W. J AEKEL, GEo. L. \VHEELooK.

